The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2006
Filed:
Mar. 25, 2003
Osamu Kanou, Saitama, JP;
Yoshinori Miyashita, Saitama, JP;
Shigemi Fujisawa, Saitama, JP;
Yoshiaki Hamada, Saitama, JP;
Yoshio Nakada, Saitama, JP;
Akihiro Tanaka, Saitama, JP;
Hiroomi Uehara, Kanagawa, JP;
Osamu Kanou, Saitama, JP;
Yoshinori Miyashita, Saitama, JP;
Shigemi Fujisawa, Saitama, JP;
Yoshiaki Hamada, Saitama, JP;
Yoshio Nakada, Saitama, JP;
Akihiro Tanaka, Saitama, JP;
Hiroomi Uehara, Kanagawa, JP;
Nisshin Seifun Group Inc., Tokyo, JP;
Abstract
A powdery particle conveying system is provided in which electric power consumption can be saved when powdery particles are conveyed by use of a roots blower. In the case where the powdery particles are conveyed to a reservoir tank near the roots blower, the frequency of a power source of a roots blower driving motor is reduced, thereby reducing an output of the roots blower. In contrast, in the case where the powdery particles are conveyed to a remote reservoir tank, a voltage of a commercial frequency is applied to the motor.